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The nucleus of an atom can be assumed to be spherical. The radius of the nucleus of mass number 7 is given by 1.25x 10 -13 A 1/3 cm Radius of atom is one A. If the mass number
Q. Illustrate Nature of light as a particle? Ans. You have seen that when excited electrons return to the ground state they release packets of energy, called photons. Photons
CATALYSTS A catalyst is a species that speeds up a chemical reaction but is not itself consumed. Catalysts do not change the thermodynamics of the position of equilibrium or a
10 g of h2 and 64 g of o2 are filled in a steel vessel and exploded amount of water produced in this reaction
Alkane is a organic compound which having single bond between c-c i.e alkane is a saturated compound.
Which of the following are isoelectronic and isostructural NO - 3 , CO 2- 3 ,ClO - 3 , S O 3 (1) NO - 3 , CO 2 - 3 (2) SO 3 , NO- 3
Number of unpaired electrons in 1s 2 2s 2 2p 3 is: (1) 2 (2) 0 (3) 3 (4) 1 Ans: 3
Evaluation of food quality A common practice employed to evaluate the shelf life of a given food product is to determine changes in selected quality characteristics over a per
what are the subatomic particles present in an atom?
Q. Write an account of soda lime glass and safety glasses. Ans. Soda-Lime Glass or soft glass: It is the ordinary glass in which Na 2 O is added to the melt to oxide on hea
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